Page 183 - Microsoft Word - LessonPlan-Overview.doc
P. 183
Unit 6: Sound Page 15
mouth is moved, by waves, across remember; transverse and
the room. longitudinal. Neat, huh? That
makes it pretty easy. So let’s talk
Waves are Energy-Mobiles about them. A transverse wave is a
wave where the particle moves
Why are waves perpendicular to the medium. A
energy-mobiles? longitudinal wave is where the
Remember that particle moves parallel to the
energy is the ability to medium. “Ummm....so much for
do work, and work is moving easy...”
something a distance against a
force. Can you tell me what is Hold on a minute, let me explain
moving against a force in a wave? and make that a little simpler.
Better yet, let’s just see it. Jump
If you said particles you’re over to your first experiment
right. Water particles, molecules, (Transverse & Longitudinal Waves)
electrons, some sort of small right now.
particles are moving back and forth
at potentially incredible speeds Resonance
against a force. Each particle
moving does work on another Finally, we’re
particle which gets it moving. That done with the
particle then does work on another basics of
particle which gets it moving, energy and
which then does work on another can get down
particle getting it moving, which to some fun
then gets another moving and so stuff. Now that you folks know
on and so forth. Particles moving what energy is all about you can
and doing work on other particles begin to reap the rewards! We're
is energy and waves are how going to focus on sound and
energy moves. resonance. Sound is a form of
energy.
Transverse and
Longitudinal Waves Sound Antennas
Physics is really nice to us here Here we will focus on our sound
because, believe or not, with all antennas, our ears. Energy is
the different forms of energy there everywhere. As you sit reading
are only two types of waves to this there is energy all around you
© 2010 Supercharged Science www.ScienceLearningSpace.com
183
